LG LA140CE Bedienungsanleitung
LG
Room
Air Conditioner
SERVICE MANUAL
LG
CAUTION
website http://www.lgservice.com
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
MODELS: LA140CE
2Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
LG Model Name ...............................................................................................................................................3
Safety Precautions..........................................................................................................................................4
Dimensions .....................................................................................................................................................8
Symbols used in this Manual......................................................................................................................8
Indoor Unit..................................................................................................................................................9
Outdoor Unit...............................................................................................................................................9
Product Specifications ................................................................................................................................10
Installation .....................................................................................................................................................11
Select the Best Location .........................................................................................................................11
Piping Length and Elevation.....................................................................................................................11
Fixing Installation Plate ............................................................................................................................12
Drill a Hole in the wall...............................................................................................................................12
Flaring Work.............................................................................................................................................13
Connecting the Piping ..............................................................................................................................14
Connecting the Cables.............................................................................................................................19
Connection method of the connecting cable(Example)............................................................................20
Connect the cable to the indoor unit.........................................................................................................21
Checking the Drainage.............................................................................................................................22
Forming the Piping ...................................................................................................................................23
Air Purging ...............................................................................................................................................24
Test Running ............................................................................................................................................26
Operation ......................................................................................................................................................28
Function of Controls .................................................................................................................................28
Display Function.......................................................................................................................................34
Self-diagnosis Function............................................................................................................................34
Remote Control Operations......................................................................................................................35
Disassembly ..................................................................................................................................................36
Indoor Unit................................................................................................................................................36
Schematic Diagram.......................................................................................................................................39
Electric control Device..............................................................................................................................39
Wiring Diagram.........................................................................................................................................41
Components Location ..............................................................................................................................42
Troubleshooting Guide .................................................................................................................................46
Refrigeration Cycle Diagram ....................................................................................................................46
2-way, 3-way Valve ...................................................................................................................................47
Cycle Parts...............................................................................................................................................52
Electronic Parts ........................................................................................................................................53
Exploded View & Replacement Parts List .................................................................................................62
Indoor Unit...............................................................................................................................................63
Outdoor Unit............................................................................................................................................64
Service Manual 3
LG Model Name
12 - 345678910
Code Type Code of Model Meaning
1 Producing Center, A~Z L: Chang-won R22 N: India
Refrigerant A: Chang-won R410A Z: Brazil
C: Chang-won R407C D: Indonesia
T: China M: Mexico
K: Turkey R22 V: Vietnam
E: Turkey R410A S: Out Sourcing
H: Thailand
2 Product Type A~Z S: Split Type Air Conditioner
3 Cooling/Heating/Inverter A~Z C: Cooling only
H: Heat pump
X: C/O + E/Heater
Z: H/P + E/Heater
V: AC Inverter C/O
N: AC Inverter H/P
Q: DC Inverter C/O
W: DC Inverter H/P
4, 5 Capacity 0~9 Cooling/Heating Capacity
Ex. "09" →9,000 Btu/h
6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3Phase
A~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase
3: 208-230V/60Hz C: 575V, 50Hz, 3Phase
5: 200-220V/50Hz D: 440~460, 60Hz, 3Phase
6: 220-240V/50Hz E: 265V, 60Hz
7: 110V, 50/60Hz F: 200V, 50/60Hz
8: 380-415V/50Hz
9: 380-415V/60Hz
7 Chassis A~Z Name of Chassis of Unit
Ex. LSP →SP Chassis
8 Look A~Z Look,
Color (Artcool Model)
9 Function A~Z
10 Serial No. 1~9 LG Model De
* ARTCOOL COLOR
velopment Serial No.
Basic A
Basic+4Way B
Plasma Filter C
Plasma Filter+4 Way D
Tele+LCD E
Tele+LCD+Nano plasma+4Way F
Nano Plasma F+(A/changeove)+A/clean+Low A G
Nano Plasma F+(A/changeove)+A/clean+4way+Low A H
Tele+LED+4way I
Internet J
Plasma F+4Way+Oxy generator K
Nano Plasma F+(A/changeove)+A/clean L
Nano Plasma F+(A/changeove)+A/clean+4way M
Nano Plasma F+(A/changeove)+A/clean+PTC N
Nano Plasma F+(A/changeove)+Autoclean+4way+PTC P
Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC Q
Negative ION+A/Clean R
(Nano)Plasma+Negative ION+A/Clean S
4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean
T
Nano Plasma F+4Way+(A/changeove)+A/clean+ U
R Mirror
W White
B Blue
D Wood
M Metal
C Cherry
2003
4Room Air Conditioner
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must
be followed.
■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
■Meanings of symbols used in this manual are as shown below.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
Be sure not to do.
Be sure to follow the instruction.
■Installation
Always perform grounding.
• Otherwise, it may cause electrical shock.
Don’t use a power cord, a plug or a loose socket
which is damaged.
• Otherwise, it may cause a fire or electrical shock.
For installation of the product, always contact the
service center or a professional installation agency.
• Otherwise, it may cause a fire, electrical shock,
explosion or injury.
Securely attach the electrical part cover to the
indoor unit and the service panel to the outdoor
unit.
• If the electrical part cover of the indoor unit and the
service panel of the outdoor unit are not attached
securely, it could result in a fire or electric shock due to
dust, water, etc.
Service Manual 5
Safety Precautions
Always install an air leakage
breaker and a dedicated switch-
ing board.
• No installation may cause a fire and
electrical shock.
Do not keep or use flammable
gases or combustibles near the
air conditioner.
• Otherwise, it may cause a fire or
the failure of product.
Ensure that an installation frame
of the outdoor unit is not dam-
aged due to use for a long time.
• It may cause injury or an accident.
Do not disassemble or repair the
product randomly.
• It will cause a fire or electrical
shock.
Do not install the product at a
place that ther is concern of
falling down.
• Otherwise, it may result in personal
injury.
Use caution when unpacking and
installing.
• Sharp edges may cause injury.
Do not share the outlet with
other appliances.
• It will cause an electric shock or a
fire due to heat generation.
Do not use the damaged power
cord.
• Otherwise, it may cause a fire or
electrical shock.
Do not modify or extend the
power cord randomly.
• Otherwise, it may cause a fire or
electrical shock.
Take care so that the power cord
may not be pulled during opera-
tion.
• Otherwise, it may cause a fire or
electrical shock.
Unplug the unit if strange
sounds, smell, or smoke comes
from it.
• Otherwise, it may cause electrical
shock or a fire.
Keep the flames away.
• Otherwise, it may cause a fire.
■Operation
Wax
Thinner
6Room Air Conditioner
Safety Precautions
Take the power plug out if neces-
sary, holding the head of the
plug and do not touch it with wet
hands.
• Otherwise, it may cause a fire or
electrical shock.
Do not use the power cord near
the heating tools.
• Otherwise, it may cause a fire and
electrical shock.
Do not open the suction inlet of
the indoor/outdoor unit during
operation.
• Otherwise, it may electrical shock
and failure.
Do not allow water to run into
electrical parts.
• Otherwise, it may cause the failure
of machine or electrical shock.
Hold the plug by the head when
taking it out.
• It may cause electric shock and
damage.
Never touch the metal parts of
the unit when removing the filter.
• They are sharp and may cause
injury.
Do not step on the indoor/outdoor unit and do not
put anything on it.
• It may cause an injury through dropping of the unit or
falling down.
Do not place a heavy object on the power cord.
• Otherwise, it may cause a fire or electrical shock.
When the product is submerged into water, always
contact the service center.
• Otherwise, it may cause a fire or electrical shock.
Take care so that children may not step on the out-
door unit.
• Otherwise, children may be seriously injured due to
falling down.
Service Manual 7
Safety Precautions
Wax
Thinner
■Installation
Install the drain hose to ensure that drain can be
securely done.
• Otherwise, it may cause water leakage.
Install the product so that the noise or hot wind
from the outdoor unit may not cause any damage
to the neighbors.
• Otherwise, it may cause dispute with the neighbors.
Always inspect gas leakage after the installation
and repair of product.
• Otherwise, it may cause the failure of product.
Keep level parallel in installing the product.
• Otherwise, it may cause vibration or water leakage.
Avoid excessive cooling and perform ventilation
sometimes.
• Otherwise, it may do harm to your health.
Use a soft cloth to clean. Do not use wax, thinner,
or a strong detergent.
• The appearance of the air conditioner may deteriorate,
change color, or develop surface flaws.
Do not use an appliance for special purposes such
as preserving animals vegetables, precision
machine, or art articles.
• Otherwise, it may damage your properties.
Do not place obstacles around the flow inlet or out-
let.
• Otherwise, it may cause the failure of appliance or an
accident.
■Operation
8Room Air Conditioner
Dimensions
Dimensions
Installation plate
D
H
W
Indoor Unit
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that may cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Symbols used in this Manual
MODEL
DIM Unit
W mm 1030
H mm 290
D mm 153
14K Btu Series
Service Manual 9
WL2
L3
L1
D
H
L4
L5
Gas side
(3-way valve)
Liquid side
(2-way valve)
MODEL 14K Btu Series
DIM unit
W mm 770
H mm 540
D mm 245
L1 mm 285
L2 mm 64
L3 mm 518
L4 mm 10
L5 mm 100
Dimensions
Outdoor Unit
10 Room Air Conditioner
Product Specifications
Product Specifications
Table-1
Model Name
Item Unit
Cooling Capacity Btu/h
Heating Capacity
Moisture Removal l/h
Power Source Ø, V, Hz
Cooling W
Heating
Running Cooling A
Current Heating
E.E.R. Cooling Btu/hW
C.O.P Heating
Refrigerant g
Airflow Direction Control (Up & Down)
Remocon Type
inch(mm)
Sleeping Operation
Drain Hose
Connecting Cable(p*mm2)
Power Cord(p*mm2)
Air Circulation
Noise Level
Input
m3/min
dB (A)±3
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Liquid
Gas
Service Valve
Motor Output
Dimensions
(W x H x D)
Net. Weight
W
mm
kg
LA140CE
14000
-
1.5
1Ø, 115V, 60Hz
9
26
41
48
1400
-
13
-
10.0
-
24
27
1030 x 290 x 153
770 x 540 x 245
9.5
35
900(R22)
O
L.C.D Wireless
1/4(6.35)
1/2(12.7)
O
O
18: 4*0.75
14: 3*2.5
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